package model.semantics;

import model.State;

public class IfNode extends Node<Integer>
{
	private Node<Integer> myExpr, myIfNode;
	
	public IfNode(Node<Integer> expr, Node<Integer> ifNode) {
		myExpr = expr;
		myIfNode = ifNode;
	}
	
	@Override
	public Integer evaluate(State<Integer> state) {
		return myExpr.evaluate(state) > 0 ? myIfNode.evaluate(state) : null;
	}
}
